Cleaner assembly

ABSTRACT

A cleaning apparatus having a pan-shaped housing enclosing a rotatable spinner assembly equipped with a plurality of rotatable laterally directed arms for carrying cleaning fluid under pressure to nozzles. Cleaning fluid under pressure is discharged in a circular pattern out the open side of the housing close to the surface to be cleaned. Brushes connected to the housing scrub the surface as the apparatus is moved over the surface. A pair of facing housings are adjustably mounted on a frame used to change the elevation of the housings. One of the frames is adjustably mounted on a support so that the space between the housings can be changed. A plurality of caster wheels and a handle may be connected to a housing so that the apparatus is movably supported above a surface.

United States Patent [1 1 July 24, 1973 I Poppitz v CLEANER ASSEMBLYHarold A. Poppitz, c/o Chaska Chemical Company Inc., 304 Master Ave.,Savage, Minn. 55378 Filed: Nov. 12,1971

Appl. No.: 198,144

Related Application Data v Continuation-impart of Ser. No; 10,707, Feb.12, 1970, abandoned.

Inventor:

U.S. Cl 401/289, 15/50 R, 239/251 Int. Cl A471 13/10 Field of Search15/29, 50 R, 52, 15/98, 345, 346,387; 239/225, 251, 286, 263; v 401/15,288, 289

References Cited UNITED STATES PATENTS 1 10/1925 Ushatch l5/50 R 7/1933Masseau..

10/1952 Lagant. /50 R 12/1965 Allenbaugh.....' 15/345 FOREIGN PATENTS ORAPTLJCATlQNS Great Britain... 15/345 744,466 2/1956 Great Britain..15/345 Primary Examiner-Edward L. Roberts Attorney-Richard O. Bartz etal 57 ABSTRACT A cleaning apparatus having a pan shaped housingenclosing a rotatable spinner assembly equipped with a plurality ofrotatable laterally directed arms for carrying cleaning fluid underpressure to nozzles. Cleaningfluid under pressure is discharged in acircular pattern out the open side of the housing close to the surface.to v

be cleaned. Brushes connected to the housing scrub the surface as theapparatus is moved over the'surfaceLA pair of facing housings areadjustably mounted on a frame used to change the elevation of thehousings. One of the frames is adjustably mounted on a support so thatthe space between the housings can be changed.

A plurality of caster wheels and a handle may be connected to a housingso that-the apparatus is movably supported above a surface.

Claims, 22 Drawing Figures pmmmm 3.748.050

INVENTOR. HA RQLD A. POPPITZ ATTORNEYS PATENIED 3.748050 I saw 2 or 6lNVENTOI Z. HAROLD A. POPPITZ ATTORNEYS PAIENIELJULBMSH I 3.748350 sum 30r 6 INVENIOR. HAROLD A. POPPITZ BY FIG. 15' mfimdarmwmf ATTORNEYSPumas-"1m 3.748.050

SHEET 5 0f 6 ATTORNEYS FIG. 50

1 INVENTOR. .m HAROLD POPPITZ BY MWW 1 CLEANER ASSEMBLY CROSS REFERENCETO RELATED APPLICATION This application is a continuation-in-part ofU.S. application Ser. No. l0,707 filed Feb. 12, 1970 now abandoned.

SUMMARY OF INVENTION The invention is directed to a cleaning apparatusfor discharging a generally circular pattern of cleaning fluid toward asurface or an object to be cleaned. The cleaning unit has a housinghaving a peripheral flange terminating in an edge surrounding an openside of the housing. A spinner assembly mounted on the housing isadapted to be connected to a source of cleaning fluid under pressure.The spinner assembly has a rotatable head located within the housingcarrying at least a pair of laterally directed tubular arms. Nozzlessecured to the ends of the arms direct cleaning fluid under pressuretoward the open side of the housing. Brush units are mounted on theperipheral flange of the housing to operatively engage the object orsurface to be cleaned.

In one form of the invention, the cleaning unit is mounted on an uprightframe with an adjustable clamp structure usable to selectively changethe elevation of the housing to align the open end of the housing withthe objects or articles to be cleaned. The frame can be attached to anadjustable support, whereby the housing and frame may be laterally movedrelative to the object to be cleaned. This frame and housing can be usedin combination with a second cleaning unit mounted on a frame. Thesecond cleaning unit has an open side facing the first cleaning unit,whereby generally circular patterns of cleaning fluid are directedtoward opposite sides of the object to be cleaned. An adjustable clampstructure is used to adjustably mount the second housing at a selectedelevation. Both of the frames can be mounted on a fixed support or atruck having a plurality of wheels so that the entire cleaning apparatusis portable.

In another form of the invention, a plurality of wheels and a handle aresecured to the housing so that the housing can be moved over a surface,as a floor. The housing has a side wall carrying brush attachments forscrubbing the surface.

In another form of the invention, the housing is a generally squarepan-shaped member connected to an elongated tubular handle. The cleaningfluid under pressure is delivered to a spinner assembly through thehandle. A generally square shaped brush unit attached to the housing isoperable to scrub the surface, as a wall or ceiling, to be cleaned.

An object of the invention is to provide a cleaning unit with a housingor shroud that is safe in operation and concentrates streams of cleaningfluids on surfaces or objects to be cleaned while at the same time it isthoroughly mixing and breaking down the cleaning fluid with the air toincrease the washing penetration of the cleaning fluid. Another objectof the invention is to provide a cleaning apparatus with adjustablecleaning units to accommodate different size articles to be cleaned anddirect cleaning fluid under pressure to opposite sides of the articles.A further object of the invention is to provide a high pressure, lowvolume cleaning unit that uses a minimum amount of cleaning fluid andprovides for a fast, thorough and efficient cleaning. Another object ofthe invention is to provide a cleaning unit that dispenses a circularpattern of cleaning fluid toward a surface at a close distanceconcurrently with mechanical scrubbing of the surface.

In the drawings:

FIG. 1 is a side elevational view of a cleaning unit of the invention;

FIG. 2 is a bottom plan view of the cleaning unit of FIG. 1;

FIG. 3 is a sectional view taken along the line 3-3 of FIG. 2;

FIG. 4 is an enlarged sectional view taken along the line 4-4 of FIG. 2showing the spinner assembly of the cleaning unit;

FIG. 5 is an enlarged sectional view taken along the line 5-5 of FIG. 3;

FIG. 6 is a side elevational view of a cleaning apparatus having a pairof cleaning units;

FIG. 7 is a front elevational view of the cleaning apparatus taken alongthe line 7-7 of FIG. 6;

FIG. 8 is an elevational view taken along the line 88 of FIG. 7;

FIG. 9 is an enlarged sectional view taken along the line 9-9 of FIG. 6;

FIG. 10 is an enlarged sectional view taken along the line 10-10 ofFIG.9;

FIG. 11 is an enlarged sectional view taken along the line 11-11 of FIG.6; 1

FIG. 12 is a plan view of a floor cleaner having the cleaning unit ofthe invention;

FIG. 13 is a sectional view taken along the line 13-13 of FIG. 12;

FIG. 14 is a top plan view of a modified floor cleaner having thecleaning unit of the invention;

FIG. 15 is an enlarged sectional view taken along line 15-15 of FIG. 14;

FIG. 16 is a side elevational view of FIG. 15 showing the support forthe brush attachment;

FIG. 17 is a perspective view showing a portable cleaner used on a wall;

FIG. 18 is a top plan view of the cleaner of FIG. 17;

FIG. 19 is an enlarged cross sectional view taken along line 19-19 ofFIG. 18;

FIG20 is a bottom plan view of the cleaner of FIG. 18;

FIG. 21 is a sectional view similar toFIG. 19 of a modified portablecleaner; and

FIG. 22 is a sectional view on a reduced scale taken along line 22-22 ofFIG. 21.

Referring to the drawings, there is shown in FIGS. 1 and 2 the cleaningunit, indicated generally at 20, connected to a source 21 of cleaningfluid under relatively high pressure (6001 ,000 psi) with a line 22, asa long, flexible hose. The cleaning unit 20 is used to apply thecleaning fluid under pressure to a surface 23, as a floor, wall,conveyor belt, machinery and like objects to be cleaned. The fluidpressure source 21 can be a portable cleaning apparatus, as shown in US.Pat. No. 3,433,417, or a permanent system having a central pumpingstation and cleaning distribution lines with a number of stationsadapted to be connected to the cleaning unit. The cleaning fluid can bean acid liquid solution, an alkaline liquid solution or water. Thecleaning fluid can be a heated vapor, as steam, gas under pressure ormixed air and liquid.

Cleaning unit 20 has a circular pan-shaped shroud or housing 24 carryinga spinner assembly 26. The housing 24 has a flat, disc-like top wall 27joined to a circumferential flange or side wall 28. Housing 24 can be aone-piece, pan-shaped member made from a rigid material, as metal, sheetmetal, plastic, plastic reinforced with glass fibers and likeconstruction materials. The flange 28 terminates in a circular bottomedge 29. The flange 28 has a substantially uniform width so that thebottom edge 29 lies substantially in the same transverse plane. As shownin FIG. 1, the bottom edge 29 is spaced a short distance above thesurface 23 so that the housing can be moved relative to the surfacewithout interfering with the cleaning action of the unit.

The spinner assembly 26 has a main cylindrical body 31 threaded on asupport 32. Fasteners 33, as bolts, attach the support 32 to the centerof the top wall 27. The spinner assembly 26 has a rotatable head 34projected through a hole in the top wall and located within chamber 25of the housing 24. Mounted on opposite portions of the head 34 are apair of outwardly directed tubular arms 36 and 37. Downwardly directednozzles 38 and 39 are secured to the ends of the arms. The arms 36 and37 are tubular or pipe members adapted to carry cleaning fluid underpressure to the nozzles. Nozzles 38 and 39 have discharge ends 41 and 42containing orifices or holes to direct the cleaning fluid under pressurethrough the open side of the housing to the surface to be cleaned. Asshown in FIGS. 2 and 5, the nozzles 38 and 39 are located at an anglerelative to the plane of the bottom edge of the housing 24 so that thereaction forces on the nozzles, due to the discharge of fluid underpressure from the nozzles, will turn the arms 36 and 37 in the directionof the arrow 43, shown in FIG. 2, and thereby provide a rotary cleaningmotion or circular pattern to the cleaning fluid. The angle of eachnozzle can be changed to alter the speed of rotation of the arms. Theends 41 and 42 of the nozzles are located inwardly from the bottom edge29. In other words, each entire nozzle is located in chamber 25.Preferably, this distance is one or more .inches from the plane of thebottom edge 29 to the ends 41 and 42 of the nozzles 38 and 39. Thenozzles 38 and 39, being located inwardly from the bottom edge 29 of thehousing, confine and concentrate the spray of cleaning fluid and movesthis spray of cleaning fluid in -a circular motion about the housing.Both the air and ditional safety feature is that the flange 28 preventsthe feet of the operator from engaging the spinning arms and nozzles.

Referring to FIG. 4, there is shown the spinner assembly 26 mounted onthetop wall 27 of the housing. Spinner assembly body 31 has an inwardlydirected central rib 43 dividing the main body into a first chamber 44and a second chamber 46. The support 32 has an upwardly directed sleeveor tubular boss 47 threaded to the main body 31. Located within sleeve47 is a thrust bearing 48. An elongated sleeve bearing 49, as a plasticsleeve, is located in the sleeve 47 adjacent an O-ring 41. Extendedlongitudinally through the bearing 49, O-ring 41 and thrust bearing 48is a tubular I shaft 52 having a central passage 53. The shaft 52projnect the passageway 53 with the passageways in the arms 36 and 37. Asnap ring 54 on the shaft 52 adjacent the rib 43 holds the shaft inassembled relation with the thrust bearing 48. The outer end of the mainbody 31 has an inlet plug 56 which is threaded into the chamber 46 toforce an O-ring 57 into engagement with the top of the body. Locatedbetween the plug 56 and the rib 43 is a seal means 58, as a plurality ofpacking rings, which surround the outer end of the shaft 52. The inletof the shaft 52 projects slightly into the passage 59 of the inlet plug56. The fluid line 21, through a suitable coupler, is attached to theinlet plug 56 so that fluid under pressure is directed through the inletplug passage 59 into the shaft passage 53 and into the head 34 fordistribution to the arms 36 and 37. This fluid is discharged through thenozzles 38 and 39 secured to the ends of the arms 36 and 37.

In use, the shaft 52 is rotatably carried on the support 32 with thesleeve bearing 49. The axial thrust of shaft 52 is taken up by thethrust bearing 48 which rests against the end of support sleeve 47. Theseal means 58, in conjunction with the bearings, provide for a combinedbearing and seal for shaft 52. Bearings 48 and 49 take both the axialand lateral thrust on the'shaft 52 due to the pressure on the cleaningfluid and the rotation of the shaft. v

Referring to FIGS. 6 and 7 of the drawings, there is shown a cleaningapparatus, indicated generally at 61, for continuously cleaning members62, as shackle hooks or other holding objects, supported from a movingconveyor 63. The apparatus 61 has a pair of facing cleaning units 64 and66 located on opposite sides' of members 62. The oppositely directedcleaning fluid being discharged on members 62 keeps the members in lineand out of engagement with the movable parts of the cleaning apparatus.Guide'structures 65 are provided between the cleaning units to orientateand keep the objects to be cleaned in proper alignment. Guide structures65 are rods securedto units 64 and or may be separate structures formaintaining the position of members 62 as they pass between the units.The ends of the rods are curved outwardly to guide members 62 betweenunits 64 and 66.

Cleaning units64 and 66 are adjustably mountedgon a pair of generallyupright frames or stands68 so that the cleaning apparatus can accomodatemembers to be cleaned which are located at varying heights. As shown inFIGS. 6 and 7, the cleaning units 64 and 66 are positioned on top of theframes 68.

The cleaning units. 64 and 66'are identical in structure. The followingdescription is limited to cleaning unit 64. The parts of cleaning unit66. which correspond to parts of cleaning unit 64 are identified withthe same reference numeral having the suffix A. Cleaning unit 64 has ashroud or housing 69 having a disc-like top wall 71 integral with thecylindrical flange 72 terminating in an edge 73 located generally in atransverse plane. The housing is a large pan-shaped member having achamber 65 and open side which serves to confine and concentrate thecleaning fluid for discharge onto the member 62 which moves adjacent theedge 73.

The spinner assembly 74 is mounted on the central portion of the topwall 71. The spinner assembly 74 is identical with the spinner assembly26 shown in detail in FIG. 4. Spinner assembly 74 has a rotatable head76 located within the chamber 65 of housing 64. Two pairs of equallyspaced arms 77, 78 and 79, 81 are secured to the head 76. The first pairof arms 77 and 78 at longer than the second pair of arms 79 and 81. Forexample, the first pair of arms may be three inches longer than thesecond pair of arms. Mounted on the end of each arm is a nozzle 82having a discharge opening positioned to discharge cleaning fluidoutwardly from the housing. The nozzles 82 function to provideoverlapping circular patterns of cleaning fluids. As the head 76rotates, the arms carry the cleaning fluid patterns in a circulardirection. This motion breaks down the cleaning fluid particles andmixes'them' with air, with theresult that there is greater washingpenetration with less use of cleaning fluid. The nozzles 82 can beangularly adjusted on the arms so that the reaction forces on thenozzles cause the nozzles and arms to rotate in chamber62-to be cleaned.

As shown in FIGS. 6 and 11, the frame 68 has a first pair of uprightangle members83 and 84 joined together at their upper ends with a crossmember 86. A horizontal U-shaped yoke 87 is secured to the lower ends ofthe anglememb ers 83 and 84. The yoke 87 has horizontally directedparallel legs 88 and 89. The legs telescope intovtubular members 91 and92 so that the angle members 83 and 84 can be laterally adjusted tochange the horizontal position of the cleaning unit 64 relative to themember 62. The tubular members 91 and.92 are substantially parallel toeach other and in alignment with the legs 88 and 89. Located below thetubular members is a generally square frame 93 of a truck or portablesupport. The tubular members 91 and 92 are secured directly to the frame93 and across frame member 102. Caster wheels 94' are pivotally mountedon each corner of the frame 93, whereby the entire cleaning apparatus 61may be movedto selected cleaning locations. The caster wheels 94 may beprovided with suitable brakes (not shown) to fix the cleaningapparatusat a desired location. A handle 96 is secured to the bottom portions ofthe angle members 83 and 86 tofacilitate the movementof the legs 88 and89 into and out of the tubular members 91 and 92. Set screws 97,threaded into the top portions of the tubular members 91 and 92,-.areused to lock' the legs 88 and 89 at selected positions with the tubularmembers 91 and 92.

along the angle members 83 and 84. A plurality of fasteners 104 attachthe support 32 of the spinner assembly 74 to the plate 103. The slideassembly 106 has an inside slide plate 107 and an outside slide plate108 located on opposite sides of the inwardly directed flanges of theangle members 83 and 84. Upper and lower nut and bolt assemblies 109attach the slide plates 107 and 108 to both the plate 103 and thehousing 64. A spacer.

member 111 is located between the slide plates 107 and 108 in the spacebetween the angle members 83 and 84 to prevent rotation of the cleaningunit 64'on the frame 68. As shown in FIG. 10, a lock bolt 112, havingawing head, is threadably mounted on the plate 108. The bolt 112 can beturned to a tight, locked positionto clamp the slide assembly to theangle member horizontally aligned with each other.

An on-off valve 113, mounted on a T-coupling 114, is used to regulatethe flow of cleaning fluid to both the cleaning units 64 and 66. TheT-couplingv 114'; is mounted on the end of the spinner assembly 74A. Anelongated, flexible hose 116 connectsgthe T-coupli ng 114 to the inletplug of the spinner assembly'74.'A source of cleaning fluid, indicatedat arrow 117, is di rected to the valve 113. This source may be from aportable pumping and mixing machine or a permanent installation at thecleaning location.

In use, referring to FIGS. 6 and 7, the cleaning units 64 and 66 areinitially elevated to'a face -to-face 'relation on opposite sides of themembers 62. The conveyor 63 continuously moves the members 62 to becleaned between the cleaning units 64 and 66. The slide assemblies 106and 106A, together with their associatedlock bolts 112, function to holdthe cleaning units 64 and 66 at their elevated positions. a I

I The lateral space between the facing cleaning units 64 and 66 may beadjusted bymoving the movable portion of the frame 68in a lateral orhorizontal direction. The movable frame comprises the upright angleme'mbers 83 and 84, together with the U-sh'aped support yoke 87. Thelock bolts 97 are released so that the. legs 88 and 89 may be telescopedinto or. out of the tubular members 91 and 92.The lock bolts97 areus edto lock the legs 88 and 89 in the tubular members 91' and 92.

Both cleaning units 64 and 66 can thus be vertically and horizontallyadjusted relative to each other.

Referring to FIGS. 12 and 13, there is shown a modified cleaningapparatus, indicated generally at 118. Ap-

paratus 118 has a shroud or housing 119 comprising a one-piece,inverted, pan-shaped member having a generally flat top wall 121 and adownwardly directed circumferential flange or side wall 122. The flangetermi nates in an edge 123 located in a'gene rally horizontal planeabove a surface 124 to be cleaned. The surface 124 may be a floor,conveyor belt or like areas to'be cleaned. As shown in FIG. 12, fourequallycircumferentially spaced brackets 126 are secured to the sidewall 122 of the housing. The caster wheels'1 27 are retatably mounted onthe brackets 126 to support the housing 119 a short distance above thesurface 124. As shown in FIG. 13, the caster wheels 127 space the bottomedge 123 of the housing a uniform and short distance above the surface124. This distance may vary'by having the caster wheels 127 verticallyadjustable.

Secured to the center of the top wall 121 is an upright spinner assembly128. Spinner assembly 128 is identical to the spinner assembly 26, asshown in FIG. 4. A hose 129 for directing cleaning fluid under pressureis connected to the inlet plug on the top of the spinner assembly 128.Located within the housing 119 is arotatable head 131. A pair ofoutwardly directed arms or tubular members 132 and 133, as-pipes, aresecured to the head 131. Nozzles 134 are attached to the outer ends ofthe arms 132 and 133 for directing cleaning fluid underpressuredownwardly toward the surface 124. The nozzles 134 can be angularlylocated with respect to an upright axis so that the cleaning fluid isdischarged at an acute angle with respect to the surface 124. This willcause the arms, as well as the head 131, to rotate or spin about theupright axis of the spinner assembly 128. The nozzles 134 are locatedabove the horizontal plane of the bottom edge 123 of the housing. Thisconfines and concentrates the discharge of cleaning fluid to the openend of the housing and provides for an intimate mixing and breakdown ofthe cleaning fluid with the air within the housing. The result is thatthere is greater washing penetration with a minimum use of cleaningfluid.

Attached to the top and extended upwardly and away from the housing 119is an'inverted U-shaped handle 136 used for propelling and guiding thehousing on the surface124. The lower ends of the handle 136 are attachedto the top of the housing 119 on opposite sides of the spinner 128 withclamps or connectors 137 and 138. The handle 136 may be provided withshort legs' v Referring to FIGS. 14 and 15, there is shown afloorcleaner or cleaning apparatus indicated generally at 200, operableto concurrently wash and scrub a surface 206, as a floor. Cleaner 200has a shroud or housing 201 comprising a one-piece inverted generallypanshaped member open to the surface 206. Housing 201 has a generallyflat top wall 202 and a downwardly directed circumferential flange orside wall 203. The flange 203 terminates in a bottom circular edge 204lo- ,cated in 'a generally horizontal plane above the surface .206 to becleaned.

A plurality of outwardly directed brackets 207, 208, 209 and 211 securedto the side wall 203 provide supports for caster wheels 212. Wheels 212hold housing 201 a fixed distance above the floor 206. Thisdistance canbc'altered by having the caster wheels 212 vertically adjustable. Also,the caster wheels can be yieldable or biased to permit limited relativemovement between the housing and the caster wheels.

Secured to the center of the top wall 202 is a spinner assembly 213.Cleaning fluid under pressure is supplied to the spinner assembly 213through an elongated flexible line or hose 214. Coupling 216 is used toconnect the end of the hose 214 to the inlet portion of the spinnerassembly 213. The hose 214 is connected to a suitable on-off valve 221to control the flow of cleaning fluid to the spinner assembly 213. Valve221has a manually operated lever 221A which permits the operator toregulate the flow of cleaning fluid to the spinner assembly. A hose orline (not shown) is connected to the valve 221 to couple the source offluid under pressure to the cleaner 200.

Spinner assembly 213 has a rotor portion located within the housing 201carrying a plurality of outwardly directed arms or tubular members 217.A nozzle 218 attached to the outer end of each arm 217 directs cleaningfluid 219 in a downward direction toward the ing fluid to the open endof the housing and provides I,

for an intimate washing contact and limited breakdown of the cleaningfluid with the air within the housing. With the nozzles located close tothe surface 206, there is effective fluid penetration with a minimum useof cleaning fluid. The result is a savings in water, detergent and time.

The details of the spinner assembly 213 are the same as the spinnerassembly 26 shown in FIG. 4. Alternatively, the spinner assembly 213 canbe constructed according to the spinner assembly 312 shown in FIG. 19.

Mounted on the top and extended upwardly away from housing 201 is aninverted U-shaped handle 220 used to move the housing over the floor.Handle 220 has lowerends positioned adjacent opposite portions of thehousing top wall 202. Connectors or clamps 222 and 223 located over theends of the handle are secured to the top wall with fasteners, as boltsand the like. The mid-portion of handle 220 has a pair of outwardlydirected legs 24 used as supports to accommodate and store the hose (notshown) used to direct fluid under pressure to the valve 221. The controlvalve 221 mounted on handle 220 is adapted to beconnected to a hoseleading to a source of cleaning fluid under pressure, as a portablepressure cleaning system shown in US. Pat. No. 3,433,417 or apermanently installed cleaning system.

'A pair of brush attachments, indicated generally at 225 and 226,mounted on the housing 201 are adapted to scrub and engage the surface206 in the area below the bottom edge 204 of the housing. The brushattachments 225 and 226 are identical in construction and right back orbase 231. A pair of nut and bolt assem-'v blies 232 secure the base tothe outside of the side wall 203. Flanges 228 and 229 have verticallyaligned holes accommodating an upright rod 233. A holder 234 is securedto the lower end of rod 233. The rod 233 is bi- .edge 311.

ased in a downward direction by a spring 236 which engages a pin 237extended through the rod 233. The spring is positioned about the rod 233and has a lower end resting on pin 237 and an upper end in engagementwith flange 228. Holder 234 is a generally U-shaped member foraccommodating a downwardly open channel 238. Brush bristles or fibers239 are located around a core or wire member 241 located in channel 238.The side walls of the channel are directed toward each other to clampthe bristles in the channel. The lower ends 242 of the bristles divergein a slight downward direction and engage the surface 206. Channel 238is releasably held in the holder 234 with a set screw 243 turned into anut 244 forming a side wall of the holder 234. Set screws 243 of all themounting structures can be removed so that the brush channel andbristles can be removed for cleaning or replacement.

The brush units can be mounted on the side wall 203 in a manner similarto the mounting of brush unit 337, shown in FIG. 19, on side wall 308.The caster wheels 212 can be provided with yieldable mounts or springsto permit the housing to move toward the surface 206.

In use, the biasing-action of the springs 236 forces the entire lowerends 242 of the bristles 239 into scrubbing surface engagement with thesurface 206. As the housing 201 is moved over the surface, the spinnerassembly 213 produces a high pressure cleaning action as the fluiddischarged from the nozzles 218 strikes the surface at a circular acuteangle in a confined area. Brushes 225 and 226 perform a scrubbing actionas the cleaner is moved over the surface. The two brush attachments 225and 2263011.) the surface prior to its cleaning by the rotating cleaningfluid and after the action of the cleaning fluid.

Referring to FIG. 17, there is shown a modified portable cleanerindicated generally at 300 cleaning a wall 301. The cleaner 300 isusable to clean ceilings, floors andfothersurfaces including trucks,buses, automobiles, signs, buildings and-the like. Cleaner 300 has acleaning head or housing 302 attached to a tubular handle 303. A- supplyline or hose304'is connected to the'end of the handle for supplyingcleaning fluid under pressure to the housing. -The operator 306, throughuse of the handle 303, moves the cleaner housing over the surface 301 tobe cleaned. 0

I -As shown in FIGS. 18 and 19, the cleaning housing has a generallysquare top wall 307 adjoined to a peripheral or -side wall 308 to form agenerally panshaped member. The corners of the cleaning housing arerounded to enable the cleaner to be used in corners. The outer portionof the sidewall 308 has an outwardly stepped lip 309 terminating in acontinuous bottom Mounted in the center portion of top wall 307 is aspinner assembly indicated generally at 312. Cleaning fluid underpressure is supplied to the spinner assembly through the elongatedhandle 303. This cleaning fluid is dispensed in a continuous circularpattern from a relatively close and fixed distance toward the surface301. Spinner assembly 312 has a low body 313 secured to the top of wall307 with a plurality of bolts 314. The upper part of body 313isr'elatively flat, giving the cleaner a low profile so that it can beused in relatively small and narrow places. Body 313 has a neck orprojection 316 which extends down through a center hole in top wall 307into the housing chamber. The neck 316 has a central passageway 317' forcarrying fluid under pressure to a rotor indicated generally at 318. Therotor 318 moves in a circular path to discharge high pressure cleaningliquid 319 onto the surface 301. The neck 316 has a reduced diameterhead 321 with radial bores 322 communicating with the passageway 317.Rotatably mounted on the head is cylindrical collar sleeve 324. A cap326 is secured to the bottom of head 321 with a bolt 327. The sleeve 324has an inside cylindrical surface located in a close sliding fit withthe outside cylindrical surface of the head 321. In addition, the sleevehas radial surfaces in sliding contact with adjacent radial surfaces ofthe neck 316 and the cap 326. These surfaces provide a seal between thesleeve 324 and the head 321. The center portion of the inside of cap 326is slightly raised to prevent locking or binding of sleeve 324. Sleeve324 preferably is made of a plastic material, as Nylon, which hasself-lubricating characteristics with respect to the material of thehead 321 and the cap 326. The inner ends of tubular radial arms 328 328and 329- are secured to the sleeve 324.-

Nozzle units 331 and 332 are attached to the outer ends of arms 328 and329 respectively. Each nozzle unit has a discharge orifice for directingthe high pressure cleaning fluid 319 toward. the surface 301. Eachnozzle unit can be angularly located with respect to the axis ofrotation of the rotor 318' so that the cleaning fluid is discharged atan angle with respect to the surface 301. This will cause the rotor tospin or rotate o n head 321 as the fluid is discharged.

The body 313 carries an angularly movable block 333 having a threadedopening for accommodating the end of handle 303. The block 333 has atransverse passageway 334 which leads to a passageway 336 in the body313. Passageway 336 is in communication with passageway 317.

A generally square brush assembly 337 is positioned adjacent the insideof the lip 309 on the side wall 308. Brush assembly 337 has a channelshaped back or rib. 338 clamped about the brush bristles or fibers 339.The

lower or outer ends of fibers 339 diverge outwardly and are generallyflat. Downwardly directed clips or fingers 342 secured to the side wall308 engage the inner portions of the back 338 to hold the brush assembly337 against hp 309. The bristles 339 of the brush assembly 337 are ofasubstantially uniform length and thereby hold the housing 302 at agenerally uniform and close a distance from the surface 301. Inaddition, the'brush assembly, being continuous, confines the highpressure cleaning fluid to the immediate space or surface to be cleaned.v

When the cleaner 300 is used in'an overhead position to clean a surface,as a ceiling, the cleaning liquid is drained from the housing 302through a drain nipple 343 adapted to be connected to an elongatedflexible tube (not shown). Nipple 343 projects through a hole in aportion of the top wall 307 and'is retained therein fication of theportable cleaner indicated generally. at

400 for cleaning a surface 401, as a wall, ceiling or the surface of anobject. The cleaner 400 has a generally square cleaning head or housing402 secured to an elongated handle 403. The handle 403 is a tubularmember which also serves as a means for deliveringcleaning fluid underpressure to the cleaning housing.

404 and a side wall or flange 406 defining a generally pan-shapedmember. The side wall 406 has an outwardly and downwardly directed lip409. An outwardly directed stepped portion 411 joins the lip 409 to thelower portion of the side wall 406. The side wall 406 has a continuousbottom edge 412 that surrounds the open end of the housing 402.

Mounted on the housing is a spinner assembly 413 connected to the handle403. The spinner assembly 413 has a body 414 having a neck 416 projectedinto the housing. A rotor 417 is mounted on the neck 416 fordistributing cleaning fluid in a circular pattern to the surface 401.The spinner assembly 413 is identical in construction with the spinnerassembly 312 shown in detail in FIG. 19. Rotor 417 has a sleeve 418rotatably mounted on neck 416. A plurality of outwardly directed arms419 and 421 secured to sleeve 418 carry nozzles 422A and 4228. Nozzles422A and 422B are operable to direct cleaning fluid under high pressurethrough the open end of the housing 404 onto the surface 401. A cap 423is secured with a bolt 424 to the lower end of neck 416 to hold sleeve418 in assembled rotating relationship with neck 416. Nozzles 422A and4228 eahc have fluid discharge openings or orifices 425A and 4258 fordirecting cleaning fluids, as liquids under high pressure, toward thesurface to be cleaned. The orifices 425A and 425B have longitudinal axesthat are at an angle or inclination with respect to the surface to becleaned. The axis of orifice 425A extends in the rearward inclineddirection and is at a greater angle than orifice 4258. Thus, thecircumferential reaction forces on the nozzle 422A will rotate the rotor417 in the direction of arrow 420. The axis of orifice 4258 is inclinedin the forward direction so that the cleaning fluid discharged therefromwill hit the surface to be cleaned at a forward inclined angle. Thiswill increase the cleaning effectiveness of the fluid, as it will peeloff and dig into the foreign material on the surface to be cleaned. Forexample, the axis of orifice 425A could be inclined 20 relative to thesurface to be cleaned and the axis of orifice 4258 could be inclinedrelative to the surface tobe cleaned.

Located adjacent lip 409 is a generally rectangular brush assembly 426adapted to scrub surface 401.

Brush assembly 426 has a generally channel-shaped back 427 carryingbrush bristles or fibers 428. The ends of the bristles are in scrubbingengagement with surface 401. A plurality of spaced clips429 securedto-the inside of side wall 406 project downwardly adjacent the back 427to retain the brush assembly 426 on the lip 409.

The open end of housing 404 is traversed with an open grille or guardindicated generally at 431. As shown in FIG. 22, the guard 431 has agenerally rectangular peripheral edge member 432 that fits in thestepped portion 411 of the housing 404. The retaining clips429 hold themember 432 in the inside of the stepped portion 411 above the brushassembly 426. The guard 431 has a center member or portion 433 whichextends inwardly and engages the cap 423. A network or array of members434, as rods or wires, radially extend from the center member 433 andare secured to the peripheral member 432. Members 434 are generallynarrow elongated members and do not appre-, ciably interfere with thedispensing of the cleaning fluid under high pressure onto the surface401. They provide a guard or shield to prevent projected portions ofsurface 401 from engaging the rotating rotor arms or nozzles. Additionalcircular, rectangular and radial members can be added to the grille toprovide more members which will obstruct and interfere with theinsertion of objects into the housing.

The invention has been shown and described with respect to preferredembodiments of the cleaning apparatus utilizing one or more cleaningunits. Changes, modifications, substitutions, as well as the size of thehousings, spinner assemblies, brush units and other parts of thecleaners may be made by those skilled in the art without departing fromthe spirit of the invention.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as fol lows:

1. A cleaning apparatus for discharging a generally circular pattern ofcleaning fluid toward a surface comprising: a housing having a top walland a peripheral side wall terminating in an edge surrounding an openside of the housing; a spinner assembly mounted on a central portion ofthe top wall and adapted to be con nected to a source of cleaning fluidunder pressure, said spinner assembly having a rotatable rotor locatedwithin said housing; tubular arm means mounted on the rotor for rotationtherewith within said housing; said spinner assembly having a body witha cylindrical portion, said rotor having a sleeve rotatably mounted onthe cylindrical portion; means to hold the sleeve on the cylindricalportion, said arm means being secured to said sleeve, said sleeve havingpassageways to direct cleaning fluid under pressure to said arm means;nozzle means secured to portions'of the arm means, said nozzle meanslocated inwardly from the plane of the edge of the housing, each nozzlemeans having at least one discharge orifice directed toward the openside of the housing whereby on application of cleaning fluid underpressure to the spinner assembly the nozzle means move in a circulardirection directing. a pattern of cleaning fluid out through the openside of the housing; and brush means mounted on said wallengageable withsaid surface to be cleaned.

2. The cleaning apparatus of claim, 1] including: means to removablymount the brush means on the side wall of the housing.

3. The cleaning apparatus of claim 1 whereinzsaid brush means comprise aplurality of arcuate brush units, and mounting means for connecting thebrush units to theside wall. 7

4. The cleaning apparatus of claim 1 including: wheel means attached tothe housing to support the housing on the surface with the bottom edgeof the housing spaced from the surface.

5. The cleaning apparatus. of claim 1 including:

mount means movably attaching the brush means to the side wall of thehousing, said mount means having generally upwardly movable membersattached to the brush means and biasing means for yieldably urging thebrush means in a downward direction into engagement with the surface.

6. The cleaning apparatus of claim 5 wherein: the mount means comprisesa support means secured to the side wall of the housing, a generallyupright rod member movably mounted in said support means and springmeans for biasing the rod in a downward direction and means to connectthe brush means to the lower end of the rod.

7. The cleaning apparatus of claim 1 including: mount means forattaching the brush means tothe side wallof the housing, said mountmeans having means to releasably attach the brush unit to the side wallwhereby the brush unit can be removed from the housing.

8. The cleaning apparatus of claim 1 including: handle means connectedto opposite portions of the housing, and flexible hose means connectedto the handle means and the spinner assembly for carrying cleaning fluidunder pressure from the handle means to the spinner assembly. 7

9. The cleaning apparatus of claim 1 including: handle meansconnected tothe housing.

10. The cleaning apparatus of claim 9 wherein: the handle means is anelongated tube adapted to carry cleaning fluid under pressure to thespinner assembly.

11. The cleaning apparatus of claim 1 including: handle means pivotallymounted on a portion of the spinner assembly.

12. The cleaning apparatus of claim 11 wherein: the handle means is anelongated tube adapted to carry cleaning fluid under pressure to thespinner assembly.

13. The cleaning apparatus of claim 1 including: an open guard meansextended across the open side of the housing.

14. The cleaning apparatus of claim 1 wherein: the housing has agenerally square shape.

15. The cleaning apparatus of claim 1 wherein: the side wall has anoutwardly stepped lip providing an inside peripheral space for a portionof the brush means, and means to hold said portion of the brush means insaid space.

16. The cleaning apparatus of claim 15 including: open guard meansextended across the open side of the housing, said guard means having aportion located adjacent said brush means, said means to hold the brushmeans also holds the guard means to the side wall.

17. The cleaning apparatus of claim 1 including:

' drain means attached to'said top wall to allow cleaning fluid to drainfrom said housing when it is used in an inverted position. v

18. The cleaning apparatus of claiml wherein: the

nozzle means has one nozzle having a discharge orifice inclined in aforward direction and anothernozzle havdirecting a pattern of cleaningfluid out through the open side of the housing; and brush means mountedon said side wall engageable with said surface to be 23. The cleaningapparatus of claim 19 including: I

mount means movably attaching the brush means to the side wall of thehousing, said mount means having generally upwardly movable membersattached to the brush means and biasing means for yieldably urging thebrush means in a downward direction into engagement with the surface.

24. The cleaning apparatus of claim 23 wherein: the mount means comprisea support means secured to the side wall of the housing, a generallyupright rod member movably mounted in saidsupport means and spring meansfor biasing the rod in a downward direction and means to connect thebrush means to the lower end of the rod. I

25. The cleaning apparatus of claim 19 including: mount means forattaching the brush means to the side wall of the housing, said mountmeans having meansto releasably attach the brush unit, to the, side wallwhereby the brush unit can be removed from, the housmg. v v

26. The cleaning apparatus of claim 19 includingz an open guard meansextended across the open sideof the housing. v v

27. The cleaning apparatus of claim 19 whereinz-the housing has agenerallyv square shape.

inga discharge orifice inclined in a rearward direction relative tothe-direction of rotation of the rotor.

19. A cleaning apparatus for discharging a generally circular pattern ofcleaning fluid toward a surface comprising: a housing having" a topwall-and'a peripheral side wall terminatingin an edge surrounding anopen side of the housing;'a spinner assembly mounted on a centralportion of-the top wall and adapted tobe connected to a source ofcleaning fluid under pressure,

handle means connected to the cleaning apparatus, said handle meanscomprising an elongated tube adapted to carry cleaning fluid underpressure to the spinner assembly, said spinner assembly having arotatable rotor located within said housing; tubular arm means mountedon the rotor for rotation therewith within said housing; nozzle meanssecured. to portions of the arm means, said nozzle meanslocated inwardlyfrom the-plane of the edge of the housing, each nozzle meanshaving atleast one discharge orifice directed toward the open side of the housingwhereby on application of cleaning fluid under pressure to the spinneras sembly the nozzle means move in a circular direction 28. The cleaningapparatusof claim 19 whereinzthe side wall has an outwardly stepped lip"providingan inside peripheral space for a-portion of the brush means,-

and means to hold said portion of the brush meansin said space.

29. The cleaning apparatus of claim 28 including: open guard meansextended acrossthe openside of-the housing, said guard means havingaportion located adjacent said brush means, said means to holdthe brushmeans also holds the guard means to the side wall. 30. The cleaningapparatus of claim 19 wherein: said spinner assembly'has a body havinga: cylindrical portion, said rotor having a sleeve rotatably mountedonthe cylindrical portion, means to hold the sleeve on the cylindricalportion, said arm means being securedto said sleeve, said sleeve havingpassageways to direct cleaning fluid under pressure to said arm means.31. The cleaning apparatus of claim 19 including: drain means attachedto said top wall to allow cleaning fluid to drain from said housing whenit is used in an inverted position. i

32. The cleaning apparatus of claim 19 wherein: the nozzle means has onenozzle having a discharge orifice inclined in a forward direction andanother nozzle-having a discharge orifice inclined in a rearwarddirection relative to the direction of rotation of the rotor.

33. A cleaning apparatus for discharging a generally circular pattern ofcleaning fluid toward a surface comprising: a housing having a top walland an outer peripheral side wall terminating in an edge surrounding anopen side of the housing; a spinner assembly mounted on a centralportion of the top wall adapted to be connected to a source of cleaningfluid under pressure, said spinner assembly having a body secured to thetop wall, a member rotatably mounted on the body, means to hold themember in rotatable assembled relation with the body, tubular arm meansmounted on the member for rotation therewith within said housing,said-body and member having passageways to direct cleaning fluid underpressure to said arm means, nozzle means secured to protions of the armmeans, said nozzle means located inwardly from the plane of the edge ofthe housing, each nozzle means having at least one discharge orificedirected toward the open side of the housing whereby on application ofcleaning fluid under pressure to the spinner assembly the nozzle meansmoves in a circular direction directing a pattern of cleaning fluid outthrough the open side of the housing; and brush means mounted on saidside wall adapted to engage the surface to be cleaned.

34. The cleaning apparatus of claim 33 including: means to removablymount the brush means on the side wall of the housing.

35. The cleaning apparatus of claim 33 wherein: said brush meanscomprise a plurality of arcuate brush units, and mounting means forconnecting the brush units to the side wall.

36. The cleaning apparatus of claim 33 including: wheel means attachedto the housing to support the housing on the surface with the bottomedge of the housing spaced from the surface.

37. The cleaning apparatus of claim 33 including: mount means movablyattaching the brush means to the side wall of the housing, said mountmeans having generally upwardly movable members attached to the brushmeans and biasing means for yieldably urging the brush means in adownward direction into engagement with the surface.

38. The cleaning apparatus of claim 37 wherein: the mount meanscomprises a support means secured to the side wall of the housing, agenerally upright rod member movably mounted in said support means andspring means for biasing the rod in a downward direction and means toconnect the brush means to the lower end of the rod.

39. The cleaning apparatus of claim 33 including: mount means forattaching the brush means to the side wall of the housing, said mountmeans having means to releasably attach the brush unit to the side wallwhereby the brush unit can be removed from the hous- 40. The cleaningapparatus of claim 33 including: handle means connected to oppositeportions of the housing, and flexible hose means connected to the handlemeans and the spinner assembly for carrying cleaning fluid underpressure from the handle means to the spinner assembly. 7 v

41. Cleaning apparatus of claim 33 including: handle means connected tothe housing.

42. The cleaning apparatus of claim 41 wherein: the handle means is anelongated tube adapted to carry cleaning fluid under pressure to thespinner assembly.

43. The cleaning apparatus of claim 33 including: handle means pivotallymounted on a portion of the spinner assembly.

44. The cleaning apparatus of claim 43 wherein: the

handle means is an elongated tube adapted to carry cleaning fluid underpressure to the spinner assembly. 45. The cleaning apparatus of claim'33including: an open guard means extended across the open side of thehousing.

jacent said brush means, said means to-hold the brush means also holdsthe guard means to the side wall.

49. The cleaning apparatus of claim 33 including: drain means attachedto said top wall to allow cleaning fluid to drain from said housing whenit is used in an inverted position.

50. The cleaning apparatus of claim 33 wherein: the nozzle means has onenozzle having a discharge orifice inclined in a forward direction andanother nozzle having a discharge orifice inclined in a rearwarddirection relative to the direction of rotation of the rotor.

1. A cleaning apparatus for discharging a generally circular pattern ofcleaning fluid toward a surface comprising: a housing having a top walland a peripheral side wall terminating in an edge surrounding an openside of the housing; a spinner assembly mounted on a central portion ofthe top wall and adapted to be connected to a source of cleaning fluidunder pressure, said spinner assembly having a rotatable rotor locatedwithin said housing; tubular arm means mounted on the rotor for rotationtherewith within said housing; said spinner assembly having a body witha cylindrical portion, said rotor having a sleeve rotatably mounted onthe cylindrical portion; means to hold the sleeve on the cylindricalportion, said arm means being secured to said sleeve, said sleeve havingpassageways to direct cleaning fluid under pressure to said arm means;nozzle means secured to portions of the arm means, said nozzle meanslocated inwardly from the plane of the edge of the housing, each nozzlemeans having at least one discharge orifice directed toward the openside of the housing whereby on application of cleaning fluid underpressure to the spinner assembly the nozzle means move in a circulardirection directing a pattern of cleaning fluid out through the openside of the housing; and brush means mounted on said wall engageablewith said surface to be cleaned.
 2. The cleaning apparatus of claim 1including: means to removably mount the brush means on the side wall ofthe housing.
 3. The cleaning apparatus of claim 1 wherein: said brushmeans comprise a plurality of arcuate brush units, and mounting meansfor connecting the brush units to the side wall.
 4. The cleaningapparatus of claim 1 including: wheel means attached to the housing tosupport the housing on the surface with the bottom edge of the housingspaced from the surface.
 5. The cleaning apparatus of claim 1 including:mount means movably attaching the brush means to the side wall of thehousing, said mount means having generally upwardly movable membersattached to the brush means and biasing means for yieldably urging thebrush means in a downward direction into engagement with the surface. 6.The cleaning apparatus of claim 5 wherein: the mount means comprises asupport means secured to the side wall of the housing, a generallyupright rod member movably mounted in said support means and springmeans for biasing the rod in a downward direction and means to connectthe brush means to the lower end of the rod.
 7. The cleaning apparatusof claim 1 including: mount means for attaching the brush means to theside wall of the housing, said mount means having means to releasablyattach the brush unit to the side wall whereby the brush unit can beremoved from the housing.
 8. The cleaning apparatus of claim 1including: handle means connected to opposite portions of the housing,and flexible hose means connected to the handle means and the spinnerassembly for carrying cleaning fluid under pressure from the handlemeans to the spinner assembly.
 9. The cleaning apparatus of claim 1including: handle means connected to the housing.
 10. The cleaningapparatus of claim 9 wherein: the handle means is an elongated tubeadapted to carry cleaning fluid under pressure to the spinner assembly.11. The cleaning apparatus of claim 1 including: handle means pivotallymounted on a portion of the spinner assembly.
 12. The cleaning apparatusof claim 11 wherein: the handle means is an elongated tube adapted tocarry cleaning fluid under pressure to the spinner assembly.
 13. Thecleaning apparatus of claim 1 including: an open guard means extendedacross the open side of the housing.
 14. The cleaning apparatus of claim1 whereiN: the housing has a generally square shape.
 15. The cleaningapparatus of claim 1 wherein: the side wall has an outwardly stepped lipproviding an inside peripheral space for a portion of the brush means,and means to hold said portion of the brush means in said space.
 16. Thecleaning apparatus of claim 15 including: open guard means extendedacross the open side of the housing, said guard means having a portionlocated adjacent said brush means, said means to hold the brush meansalso holds the guard means to the side wall.
 17. The cleaning apparatusof claim 1 including: drain means attached to said top wall to allowcleaning fluid to drain from said housing when it is used in an invertedposition.
 18. The cleaning apparatus of claim 1 wherein: the nozzlemeans has one nozzle having a discharge orifice inclined in a forwarddirection and another nozzle having a discharge orifice inclined in arearward direction relative to the direction of rotation of the rotor.19. A cleaning apparatus for discharging a generally circular pattern ofcleaning fluid toward a surface comprising: a housing having a top walland a peripheral side wall terminating in an edge surrounding an openside of the housing; a spinner assembly mounted on a central portion ofthe top wall and adapted to be connected to a source of cleaning fluidunder pressure, handle means connected to the cleaning apparatus, saidhandle means comprising an elongated tube adapted to carry cleaningfluid under pressure to the spinner assembly, said spinner assemblyhaving a rotatable rotor located within said housing; tubular arm meansmounted on the rotor for rotation therewith within said housing; nozzlemeans secured to portions of the arm means, said nozzle means locatedinwardly from the plane of the edge of the housing, each nozzle meanshaving at least one discharge orifice directed toward the open side ofthe housing whereby on application of cleaning fluid under pressure tothe spinner assembly the nozzle means move in a circular directiondirecting a pattern of cleaning fluid out through the open side of thehousing; and brush means mounted on said side wall engageable with saidsurface to be cleaned.
 20. The cleaning apparatus of claim 19 including:means to removably mount the brush means on the side wall of thehousing.
 21. The cleaning apparatus of claim 19 wherein: said brushmeans comprise a plurality of arcuate brush units, and mounting meansfor connecting the brush units to the side wall.
 22. The cleaningapparatus of claim 19 including: wheel means attached to the housing tosupport the housing on the surface with the bottom edge of the housingspaced from the surface.
 23. The cleaning apparatus of claim 19including: mount means movably attaching the brush means to the sidewall of the housing, said mount means having generally upwardly movablemembers attached to the brush means and biasing means for yieldablyurging the brush means in a downward direction into engagement with thesurface.
 24. The cleaning apparatus of claim 23 wherein: the mount meanscomprise a support means secured to the side wall of the housing, agenerally upright rod member movably mounted in said support means andspring means for biasing the rod in a downward direction and means toconnect the brush means to the lower end of the rod.
 25. The cleaningapparatus of claim 19 including: mount means for attaching the brushmeans to the side wall of the housing, said mount means having means toreleasably attach the brush unit to the side wall whereby the brush unitcan be removed from the housing.
 26. The cleaning apparatus of claim 19including: an open guard means extended across the open side of thehousing.
 27. The cleaning apparatus of claim 19 wherein: the housing hasa generally square shape.
 28. The cleaning apparatus of claim 19wherein: the side wall has an outwardly stepped lip providing an insideperipheral space for a portion of the brush means, and means to holdsaid portiOn of the brush means in said space.
 29. The cleaningapparatus of claim 28 including: open guard means extended across theopen side of the housing, said guard means having a portion locatedadjacent said brush means, said means to hold the brush means also holdsthe guard means to the side wall.
 30. The cleaning apparatus of claim 19wherein: said spinner assembly has a body having a cylindrical portion,said rotor having a sleeve rotatably mounted on the cylindrical portion,means to hold the sleeve on the cylindrical portion, said arm meansbeing secured to said sleeve, said sleeve having passageways to directcleaning fluid under pressure to said arm means.
 31. The cleaningapparatus of claim 19 including: drain means attached to said top wallto allow cleaning fluid to drain from said housing when it is used in aninverted position.
 32. The cleaning apparatus of claim 19 wherein: thenozzle means has one nozzle having a discharge orifice inclined in aforward direction and another nozzle having a discharge orifice inclinedin a rearward direction relative to the direction of rotation of therotor.
 33. A cleaning apparatus for discharging a generally circularpattern of cleaning fluid toward a surface comprising: a housing havinga top wall and an outer peripheral side wall terminating in an edgesurrounding an open side of the housing; a spinner assembly mounted on acentral portion of the top wall adapted to be connected to a source ofcleaning fluid under pressure, said spinner assembly having a bodysecured to the top wall, a member rotatably mounted on the body, meansto hold the member in rotatable assembled relation with the body,tubular arm means mounted on the member for rotation therewith withinsaid housing, said body and member having passageways to direct cleaningfluid under pressure to said arm means, nozzle means secured to protionsof the arm means, said nozzle means located inwardly from the plane ofthe edge of the housing, each nozzle means having at least one dischargeorifice directed toward the open side of the housing whereby onapplication of cleaning fluid under pressure to the spinner assembly thenozzle means moves in a circular direction directing a pattern ofcleaning fluid out through the open side of the housing; and brush meansmounted on said side wall adapted to engage the surface to be cleaned.34. The cleaning apparatus of claim 33 including: means to removablymount the brush means on the side wall of the housing.
 35. The cleaningapparatus of claim 33 wherein: said brush means comprise a plurality ofarcuate brush units, and mounting means for connecting the brush unitsto the side wall.
 36. The cleaning apparatus of claim 33 including:wheel means attached to the housing to support the housing on thesurface with the bottom edge of the housing spaced from the surface. 37.The cleaning apparatus of claim 33 including: mount means movablyattaching the brush means to the side wall of the housing, said mountmeans having generally upwardly movable members attached to the brushmeans and biasing means for yieldably urging the brush means in adownward direction into engagement with the surface.
 38. The cleaningapparatus of claim 37 wherein: the mount means comprises a support meanssecured to the side wall of the housing, a generally upright rod membermovably mounted in said support means and spring means for biasing therod in a downward direction and means to connect the brush means to thelower end of the rod.
 39. The cleaning apparatus of claim 33 including:mount means for attaching the brush means to the side wall of thehousing, said mount means having means to releasably attach the brushunit to the side wall whereby the brush unit can be removed from thehousing.
 40. The cleaning apparatus of claim 33 including: handle meansconnected to opposite portions of the housing, and flexible hose meansconnected to the handle means and the spinner assembly for carryingcleaning fluid under pressure froM the handle means to the spinnerassembly.
 41. Cleaning apparatus of claim 33 including: handle meansconnected to the housing.
 42. The cleaning apparatus of claim 41wherein: the handle means is an elongated tube adapted to carry cleaningfluid under pressure to the spinner assembly.
 43. The cleaning apparatusof claim 33 including: handle means pivotally mounted on a portion ofthe spinner assembly.
 44. The cleaning apparatus of claim 43 wherein:the handle means is an elongated tube adapted to carry cleaning fluidunder pressure to the spinner assembly.
 45. The cleaning apparatus ofclaim 33 including: an open guard means extended across the open side ofthe housing.
 46. The cleaning apparatus of claim 33 wherein: the housinghas a generally square shape.
 47. The cleaning apparatus of claim 33wherein: the side wall has an outwardly stepped lip providing an insideperipheral space for a portion of the brush means, and means to holdsaid portion of the brush means in said space.
 48. The cleaningapparatus of claim 47 including: open guard means extended across theopen side of the housing, said guard means having a portion locatedadjacent said brush means, said means to hold the brush means also holdsthe guard means to the side wall.
 49. The cleaning apparatus of claim 33including: drain means attached to said top wall to allow cleaning fluidto drain from said housing when it is used in an inverted position. 50.The cleaning apparatus of claim 33 wherein: the nozzle means has onenozzle having a discharge orifice inclined in a forward direction andanother nozzle having a discharge orifice inclined in a rearwarddirection relative to the direction of rotation of the rotor.